rt
Table 4.7
ATLINGINAE GROUP MEAN BLOOD COUNTS AT TIMESOF PEAK Di PRIESSION
W.BLC,
(Average from
Platelets © 103
Neutrophifes
Case No.
(Average from
Day 39 to 51)
Day 26 to 30)
(Average trom
Day 49 to 51)
6
9750
8
44
-
.
HAO
4570
ho
Ly mphoeytes
(Average from
Dav 89 to ol)
Age Less Than 5
'
2ts
.
3470
1x4
H600
2620
1x0
i.
450
2350
Be
2070
be
Re!
Age 6 to 15
a8
220
as
HI
6170
4700
Bote
“10
wo70
240
“40
3700
L820
:
be
poe
3150
“hoe
21y0
Bo
pos
Age Greater Than Lo
i
1G
2k
20
31
41
43
6150
45
5650
51
7750
50
59
70
4.5
6U7G
4670
6270
6750
5650
5120
7050
12400
5070
175
195
115
115
145
110
y
3570
2200
3720
4100
2950
3050
215
2370
2270
2270
2220
2450
2270
3700
180
4170
170
4620
185
3000
95
105
r
i
'
2000
i
1470
3970
b
2900
i.
2950
8120
RONGELAP GROUP
.
Po
2670
he
1750
a
The absolute neutrophile count of both the younger and older age groups fell during the
second week to a value, approximately 70 to 80 per cent of that of the controls (see Fig. 4.1).
Following the depression of the total neutrophile count during the second week, the values were
unstable until the fifth week. At this time the beginning of a second drop (P< 0.01) was noted
for both age groups, and a low value of approximately 50 per cent of controls was reached. The
:
blate
count was maintained at approximately 75 per cent of control values from the seventh week to
»
the end of the study. Although both age groups followed the same general time pattern of response, the lower age group was below that of the older group throughout most of the observation period.
The absolute lymphocyte count of the older age group (Fig. 4.2) had fallen by the third day
to a value approximately 55 per cent of the control group. This value was maintained throughout the study, and there was no definite evidence of an upward trend during the study. The
values for the younger age group likewise fell before the third day to a value approximately 25
per cent of the control, following which there was a significant upward trend. With the total
lymphocyte count, there is a consistent difference between the two age groups. However, during
the first four weeks the difference is accentuated when expressed as per cent decrease because
of the relatively high lymphocyte levels in the lower age control group. After this period the
differences expressed as per cent are less marked since recovery was more rapid in the
younger age group.
The cellular elements chiefly responsible for the fluctuations in total white blood cell
count can be determined by comparing the total white, neutrophile and lymphocyte counts (Fig.
4.3). It is seen that the lymphocyte count remained essentially constant throughout the period
79
Wrenn eee
of study, while the total neutrophile count fluctuated with a pattern essentially identical to that